کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
447142 693398 2007 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Efficient ARQ protocols for exploiting cooperative relaying in wireless sensor networks
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر شبکه های کامپیوتری و ارتباطات
پیش نمایش صفحه اول مقاله
Efficient ARQ protocols for exploiting cooperative relaying in wireless sensor networks
چکیده انگلیسی

Cooperative relaying is an efficient technique to provide diversity in wireless sensor networks. In this paper, we exploit the limited feedback from the destination and propose a novel cooperative ARQ protocol, which combines the incremental relaying and selection relaying schemes. A relay node is requested to repeat the erroneously received packet, instead of the source node. Both simple and hybrid type I ARQ schemes are studied. An analysis model is established to analyze and compare the data link layer performances of different ARQ protocols in slow fading wireless channel. We prove two SNR thresholds of the relay–destination channel, above which the cooperative ARQ protocols have better performances than the traditional counterparts. In addition, the diversity performances of the various protocols are investigated and it is demonstrated that full order diversity (second-order in this case) can be exploited by the proposed cooperative ARQ protocol. Simulation results are given, which verify the theoretical analysis and comparison.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Communications - Volume 30, Issues 14–15, 15 October 2007, Pages 2765–2773
نویسندگان
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